Inventor

KATOU NAOHIRO

JP2 patents

⚠️ This page may combine multiple inventors who share the name “KATOU NAOHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI PENCIL CO

1 patent

US10569596B2Feb 25, 2020

Writing tool refill and writing tool using same

MITSUBISHI PENCIL CO5 citations64

KATOU NAOHIRO

1 patent

US8508948B2Aug 13, 2013

Communication apparatus

KATOU NAOHIRO3 citations47